Proofpoint

Tessian Limited is a company that specializes in email security software designed to mitigate risks associated with human error and data loss. Founded in 2013 and headquartered in London, the company offers advanced solutions that leverage machine learning and artificial intelligence. Key products include CheckRecipient Guardian, which alerts users in real-time if emails are being sent to unintended recipients, and CheckRecipient RuleBuilder, which allows organizations to easily create and enforce email communication policies. The platform analyzes email networks to prevent sensitive information from being misdirected, thereby protecting clients in various sectors, including legal services, healthcare, investment banking, and technology. Tessian aims to enhance security while ensuring minimal disruption to employees' workflows, empowering them to work efficiently without compromising data integrity.

Cloudmark Inc., established in 2001 and headquartered in San Francisco, specializes in messaging security software. It safeguards communications service provider networks and their subscribers worldwide against a broad range of messaging threats, including spam, phishing, and malware. The company's flagship product, Cloudmark Security Platform, offers real-time protection and control across diverse messaging environments, ensuring a safe user experience, protecting revenue, and safeguarding brand reputation. Cloudmark's patented solutions serve over 120 tier-one customers globally, including AT&T, Verizon, and Swisscom.

Mail Distiller is a company that specializes in email security by offering a hosted service designed to filter and manage electronic mail. Its primary focus is to protect organizations from viruses and spam by blocking harmful and irrelevant content before it reaches the network. By providing comprehensive email filtering services, Mail Distiller aims to enhance the efficiency of communication within businesses, ensuring that time is not wasted on unwanted emails while safeguarding against potential security threats.

Everyone.net is a provider of hosted email and collaboration solutions designed for small businesses and service providers. Established in 1998, the company focuses on transforming communication and data sharing while enhancing security and performance. It offers customizable email services that cater to a wide range of clients, including Internet Service Providers, web hosts, organizations, and individual users. Everyone.net's solutions are built on a robust network infrastructure and feature advanced functionalities such as IMAP and mobile push email. The company also prioritizes security with integrated anti-spam and virus protection. With a strong foothold in the Software as a Service (SaaS) sector, Everyone.net manages over 6 billion message connections each month and supports more than 300,000 domains globally.

Hornetsecurity is a cloud-based email security provider, serving businesses ranging from small to large corporations globally. Their suite of services includes premium spam and virus protection, email encryption, continuity, and archiving solutions, along with advanced threat protection, web filtering, encrypted online storage, and hosted exchange services. These offerings safeguard clients against sophisticated cyber threats such as malware and spear-phishing, without requiring significant hardware or software investments or IT management efforts.